people of iran are concerned that their economy is in shambles. that puts pressure on the regime to change their behavior. does it put enough pressure to change it to the degree we need? that i remain skeptical of. we have to pursue this path. what is the alternative? the sanctions have not stopped them from moving forward with their nuclear program. if we simply say "we are going to continue harsher sanctions," it is not going to change that equation. we hope it changes it under the pressure. you're asking for a prediction. i am going to remain very skeptical until we see some concrete steps by the iranian people. if you told me two months ago that iran would agree to what they agreed to in regard to stopping development, i would have been skeptical of that, too. they did agree to that. we will see what the future holds. >> does the failure to reach an agreement create war? if in six months we do not reach in agreement on the program, does that set off the fuse toward war? everybody has been beating this drum. president obama threw water on it tw